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Chapter Summary

Photosynthesis and Respiration

ICSE · Class 7 · Biology

Summary of Photosynthesis and Respiration for ICSE Class 7 Biology. Key concepts, important points, and chapter overview.

43 questions36 flashcards5 concepts

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Overview

Green plants prepare their own food by photosynthesis and release energy from food by respiration. Photosynthesis uses sunlight, chlorophyll, water, and carbon dioxide to make glucose and oxygen. Respiration breaks down glucose to release energy for life processes. In plants, photosynthesis happens

Key Concepts

Photosynthesis is the process by

Photosynthesis is the process by which green plants capture solar energy and use it to convert carbon dioxide and water into simple sugars. It needs w

Chloroplasts are plastids found in mesophyll

Chloroplasts are plastids found in mesophyll cells of the leaf and are the site of photosynthesis. Chlorophyll is the green pigment in chloroplasts th

Stomata are tiny openings mainly on

Stomata are tiny openings mainly on the lower surface of leaves. They open into air cavities and allow carbon dioxide to enter and oxygen to leave. Ea

Xylem carries water and minerals upward

Xylem carries water and minerals upward from roots to leaves. Phloem carries glucose made in leaves to other parts of the plant in the form of sucrose

The most important factors are carbon

The most important factors are carbon dioxide, light, and suitable temperature. These factors are interdependent, so each one limits the others. Tempe

Learning Objectives

  • Understand the meaning of photosynthesis and respiration
  • Identify the raw materials and products of photosynthesis
  • Describe the role of chlorophyll, chloroplasts, stomata, guard cells, xylem, and phloem
  • Explain the factors that affect photosynthesis
  • Describe how plants store and transport food

Frequently Asked Questions

What are the important topics in Photosynthesis and Respiration for ICSE Class 7 Biology?
Key topics in Photosynthesis and Respiration include How Photosynthesis Works – Step by Step, Photosynthesis and Respiration Process Flow, Photosynthesis Process: From Inputs to Outputs. These are the concepts ICSE Class 7 examiners draw on most — study them first, then practise related questions.
How to score full marks in Photosynthesis and Respiration — ICSE Class 7 Biology?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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